libjson-c3-0.12.1-1.1 has building bug

[harry]

Hi ubuntu team
     i am developing application based on libjson-c and libglib. The previous version is Ubuntu 16.04, everything is ok. But i found malloc corruption when my OS was upgraded to Ubuntu 17.04. I suspected the glib issue in previous, but i found the problem was caused by libjson-c after debugging.
     So i used the following command to rebuild libjson from souce:
     # apt-get source libjson-c3
     # cd json-c-0.12.1
     # sudo apt-get build-dep json-c
     # sudo debuild -i -us -uc -b
     i got 3 deb packages: libjson-c-dev_0.12.1-1.1_amd64.deb , libjson-c-doc_0.12.1-1.1_all.deb, libjson-c3_0.12.1-1.1_amd64.deb
     Then use cmd: dpkg -i <***.deb> to install the above package to overwrite(overinstall) the original libjson-c package .

     Last i rebuild my application and run , everything is ok.

     GCC verison:
    # gcc --version
gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE

    # uname -a
Linux harry-ThinkPad-Edge-E430 4.10.0-22-generic #24-Ubuntu SMP Mon May 22 17:43:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

    i seems the problem was caused by release build.

Best regards
Tony

[harry (xiaohai830223)]

The attached file is the key dump with gdb debug application.
The bug was fixed after rebuilding the libjson-c with source

[Gianfranco Costamagna (costamagnagianfranco)]

I hope it is ok now

[Gianfranco Costamagna (costamagnagianfranco)]

Please reopen if you still have this issue!